Salut means 'hello' in French. Derion means nothing.
The French word "salut" comes from the Latin "salus - salutem".
Bonjour or salute
Salut
Salut!
In French, the word for "hi" is "salut." It is a casual way to greet someone.
salute Bonjour salut!
Au revoir or Salut
Salut: The word is french, but in english it is keep or hold (stay in slang usage)
"Salut" can be used to mean both hello or goodbye. Note that it is rather informal.
Salut: It is the same. In some cases the word caractere may be used.
CORRECTED: Salut: You say puce. katikkuma
salut means Hi or goodbye - this is an informal greeting or departing formula and you shouldn't address your boss that way.